Seiko Cal. 4412 - 451

This Spring Drive model from 1968 features a 40mm PVD Black case. With its 18mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-15f9fc303ca9]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1968

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